Time to First Token (TTFT)
Time to First Token (TTFT) is an efficiency metric that measures the duration from when a request is sent to an LLM to when the first token of the response is generated. When data transmission time is minimal, TTFT primarily reflects the time required for prefilling the context and predicting the initial token.
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Ch.5 Inference - Foundations of Large Language Models
Foundations of Large Language Models
Foundations of Large Language Models Course
Computing Sciences
Related
Request Latency
Throughput
Time to First Token (TTFT)
Inter-token Latency (ITL)
Tokens Per Second (TPS)
Resource Utilization in LLM Inference
Energy Efficiency in LLM Inference
Cost Efficiency in LLM Inference
A startup is building a real-time, interactive chatbot to help customers troubleshoot technical issues. Their engineering team evaluates two different language models, 'Model X' and 'Model Y'. The team's final report concludes that Model X is superior because its responses are consistently more accurate and helpful across a wide range of test queries. Based on this report, the company decides to deploy Model X. Which of the following statements identifies the most critical potential weakness in the team's evaluation process for this specific use case?
LLM Selection for a High-Volume Chatbot
A team is evaluating a large language model for deployment. Match each evaluation goal below to the primary category of metric it represents: 'Output Quality' or 'Efficiency'.
You are evaluating two candidate long-context LLMs...
You lead evaluation for an internal eDiscovery ass...
Your team is writing an internal evaluation checkl...
Your team is selecting an LLM for an internal "pol...
Selecting a Long-Context LLM for a Cost-Constrained Enterprise Document Assistant
Choosing Long-Context Evaluation Evidence for a High-Volume Contract Review Feature
Designing an Evaluation Plan for a Long-Context Compliance Copilot Under Latency and Cost Constraints
Reconciling Long-Context Retrieval Quality with Inference Efficiency for a Meeting-Transcript Copilot
Evaluating a Long-Context LLM for Audit-Ready Evidence Retrieval Under Throughput Constraints
Diagnosing Conflicting Long-Context Evaluation Signals for an Internal Knowledge Assistant